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Finding the Fourth Proportional to 66,297.12, 99,435.80 and 21,924.11

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Solution

The fourth proportional to 66,297.12, 99,435.80 and 21,924.11 is: 32,882.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,297.12 : 99,435.80 = 21,924.11 : x
  2. Step 2: Convert to fraction form
    66,297.12/99,435.80 = 21,924.11/x
  3. Step 3: Cross multiply
    66,297.12x = 99,435.80 × 21,924.11
  4. Step 4: Simplify right side
    66,297.12x = 2,180,040,810.34
  5. Step 5: Solve for x
    x = 2,180,040,810.34/66,297.12
  6. Step 6: Final answer
    x = 32,882.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.